Align multiple lines in tox
Align multiple lines in tox

This commit aligns multiple lines in tox for visual consistency.
I fixed them to 4 white spaces because the tox example[1] shows 4 white
spaces indentation.

[1] http://tox.readthedocs.org/en/latest/example/basic.html

Change-Id: I4f3b9c5c4982a0e96bb120ce8546dd48b0fa8a4b

vedujoshi/tempest,bigswitch/tempest,masayukig/tempest,masayukig/tempest,sebrandon1/tempest,openstack/tempest,Juniper/tempest,sebrandon1/tempest,Tesora/tesora-tempest,Tesora/tesora-tempest,openstack/tempest,vedujoshi/tempest,bigswitch/tempest,cisco-openstack/tempest,Juniper/tempest,cisco-openstack/tempest